Last updated: March 2, 2024
The weather in Key Biscayne, United States, during April is characterized by an average temperature of 25°C (77°F). Highs can soar to 30°C (87°F), while lows may dip to 17°C (64°F). Typically, the humidity level in Key Biscayne throughout April hovers around 73%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In April, Key Biscayne averages 63 mm (2.5 inches) of rainfall, typically over the course of 11 rainy days. The month enjoys an average of 12 hours 46 minutes of daylight, with the sun shining for approximately 11 hours 11 minutes each day. Additionally, there is a 54% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In April, the UV Index in Key Biscayne reaches a maximum of 12, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 10 minutes.
| 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UVI | 1 | 1 | 2 | 5 | 8 | 10 | 12 | 11 | 9 | 6 | 3 | 1 | 1 |
| Exposure | Low | Moderate | VeryHigh | Extreme | VeryHigh | High | Moderate | Low | |||||
| Time to burn | 45 min | 30 min | 15 min | 10 min | 15 min | 25 min | 30 min | 45 min | |||||